Play in RCM Losi 8ight mount

[ptt81]

Hey guys, I need some help. I bought the RCM motor mount to convert my new 8ight 2.0 Race roller but after install I noticed some play in the center diff, i.e. I can move it slightly back and forth (approx. 1.0~1.2mm of play), is this normal at all? what can I do to fix this?

I also noticed the center shafts angle up a bit and the "front center" shaft end dog-bone or whatever you call it sits nearly at the opening of the center diff drive cup, is this safe to drive? if not, whats the solution?

Anyone had done a conversion from a 8ight 2.0 race roller can help out? I'd appreciate it. Thanks